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Increased research and observation crucial to efforts to continue to protect the ozone layer and climate

Top ozone experts from around the world highlighted the need for increased research and observations to inform policy

Keep Cool and Carry On

Keep Cool and Carry On

Keep Cool and Carry On: Protecting our ozone layer and climate on World Ozone Day

The Montreal Protocol, the international treaty that saved the ozone layer, has been keeping our planet cool for year

SAP Co-Chair John Pyle awarded for scientific leadership

Co-Chair of the Scientific Assessment Panel of the Montreal Protocol, Prof.

Kigali Amendment: Nine Parties to the Montreal Protocol Have Ratified

Montreal Protocol parties continue to ratify the Kigali Amendment to the Protocol.

UNGA High-Level Event on the Ratification of the Kigali Amendment

Ministers and top UN leaders urged the world’s nations to quickly ratify the Kigali Amendment to the Montreal Protoco


Kigali Amendment Kigali Amendment
Montreal protocol progress
Kigali Amendment

The Kigali Amendment to the Montreal Protocol entered into force on 1 January 2019 after the threshold for the agreement to enter into force was met on 17 November 2017, when it was ratified by 20 parties.

Working towards climate neutrality Working towards climate neutrality
Greening the blue
Working towards climate neutrality

The Ozone Secretariat is part of the UN’s “Greening the Blue” efforts to move towards climate neutrality. The Secretariat works towards climate neutrality by measuring the carbon footprint of Vienna Convention and Montreal Protocol meetings ...

World Ozone Day

Ozone for life: 35 years of ozone layer protection

32 years and healing

Keep cool and carry on

30th anniversary of the Montreal Protocol: we are all ozone heroes

Ozone and climate: restored by a world united

Precious ozone: 30th anniversary of the Vienna Convention and international ozone day 2015

Earlier celebrations of international ozone day